Motor-vehicle radiator



I. B. D. L` CHARDARD.

'MOTOR vEHlcLE RADIATOR.

APPLICATION FILED MAR. 24| 1920.

. m1 M W W WWW.

Ptnted May 23, 11922.

) W 353m, 3, 2, /ar'fa? JEAN.BATTISTEDMTNIQUE LON CHARDARD, GIF PARIS,

mienia,

specification of Letters Patent.

ivLotron-vnnictn nenrn'ron, i

Application filed March 24, 1920.' Serial No. 368,294L.

To all 'witam it 07m3/ amica/m: Be it known that I, JEAN Barrrsfrn DOM-INIQUE Lr'ion CHARDARD, cltizen of thel Republic of France, and/residentof Paris,

elements of variable form and positioncurved, straight, Vertical,'horizontahv etc.,y mounted on collectors in a mannerenabhng` them to bereadily `dismantled; andv the characteristic features' of the radiatorvare the mode of assemblage and the provision of a regulator by means ofwhich it isposs1- ble to vary the quantity'of water passing through eachelement and, in case of necesr si'ty, to stop the circulation of watertherein,

(for instance in case of a leak), without `interfering with elements.

The accompanying drawing` illustrates, by way of example, a radiatorwith the features forming the subject of the'present'invention.

Figure 1 is a side elevation of a radiator element, of which- Figure 2is a front elevation. i

Figures 3-5 show modified construction.

As shown in Figures 1-3, each element :is constituted by a convenientnumber t'ubes a provided with Cooling ribs b: said tubes a establishingcommunication between an upper colleotor o and a lower collector d.

The tubes a may be substantially straight and arranv'edvertically inpairs, as represented in`` *igures l, 2, 3 and ll, or' they may 'becircular, as indicated diagrammatically in Figure 5; and in the'lat'tercase, they the circulation in the other will be arranged one withinanother in concentric relation. i

The assembling is done' inthe following` manner:

In the upper tank o of the radiator is secured by any suitable means,for instance by screwing, a Vertical union e' (Figure 1) which, lin `theexample illustrated in the drawing, receives the upper 'junction pipe eof the element; z i

The tubes a terminate at the bottoni end in a second junction pipe fwhich is connected to the bottom c'ollector. d either.e by means of aunion similar to the union e' at;-

tached to the tank 0, or by` means of aA feeder g as shown in Figure '1.

` The connectlon to the upper and bottom tanks may -be varied asdesiredv and it is possible to use either the union or the feeder forany one of, or for both, the tanks o, (Z.

i i/Vhatever the connection utiliaed-whether by feeder or unionathreaded rod 71, (see lfigure 4;) is provided 'which is disposedlongitudinally in the junction pipe f and projects beyond the same atopposite ends,

one .end extendinguinto the feeder and through, an opening` in the endwall thereof and carrying a valve This'valve is locatedwithin thefeeder, the free edge of which latter constitutes a seat therefor, sothat when saidvalve is disposed against its seat it will shutoffcommunication between the feeder or union and the pipe f. At the topthere is, similarly, a sorewthreaded rod arranged in like manner andcarrying a `Valve intercepting, when it is pressed against its seat, anycommunication between the union e' and the junction. pipe or branch e.The two junct'ion pipes a f and the tubes a are secured together to formone piece which constitutes. one element. These tubes a could bereplaced by blades or other equivalent parts such as are used inradiatoi's.

'When the element :is sep'arated from the tanks o and' (Z,jit `will benoticed that the ends of the two rods t project from the same; Inconnectingl the element to the tanks the twojunction pipes f, e arepassed over the'rods lt until their adjacent edges abut against thebearings j on the feeders or unions, at which point there are placedwashers forming a oint that can withstand a temperature of 300-4000.

` At the front end of each of the junction pipes e, f is also arranged awasher lc secured by means of a nut Z mounted on the front end of thecorresponding rod h, a part of each nut Z projecting into the interiorof the junction pipe in order to center the latlPatented May n31,T0212..

ter on the screivthreaded rod 71,. By tightsaid operation, to rcplaeethe said eleinentby ening` up the nuts an absolutely tight joint of theWhole is ensured. On the front end of the screwthreaded rod ft andprojecting` into a smooth recess in the nut is also screwed a look nut mclosed at one end and engaging the terminal of said rod which is madesquare for nianipulating the rod. The rear ends of the rods are threadedthrough the previously mentioned openings in the end walls of. theeeders or unions and are likervise' 'fitted With lock nuts which aresimilar to those just described.

The valres having` been suitably moved from their respective seats, andthe apparatus assembled as described, it Will be understood that waterwill circulate through the element and become cooled by heat dispersion'from the ribs.

In case of a leak occurring, and it :is desired whilst traveling to cutout the damaged element, it is necessary only to unscrew the lock nuts mand to turn by means of a suitable spanner the screwthreaded rods 71, soas to shut the valves f/ down on their seats. The turning of the rods7a/ is rendered possible as they are supported adjacent their ends inthe openings in the nuts Z and the teeders or unions. As soon as thevalves z' are in contact With their seats, the element is cut out, andthe leak stopped.

On arriving at the destination, or When the chaufteur has time to spare,he can detach the nuts Z and remove the da-maged element and. substituteanother. I-Ie then puts back the nuts Z and turns the screw threadedrods h so as to effect the opening` of the valves z' to give the desiredflow of the water, and finally secures the whole by means of thelock-nuts m..

In certain cases, When the radiator is ot a limited width, the elementcould be arranged las shown in Figure 3, so as to give it neverthelessthe desircd depth, using' bends p as junction pipes for some of thetubes.

In the case ot circular tubes ot the type represented in Figure 5 theassembling` would still be done by means of screwtln'eaded rods h. Inthese conditions, the hot and cold Water tanks would be connected to acentral feeder x divided into two parts by a central partition m'.Whilst still adhering` to the described method of assembling` thecomponent parts of the element or unit, it is possible to eliminate thevalves, which of course removes the possibility of regulating the flow.

The advantages of the use, of the radiator element-s according to thepresent invention are very great, and the chie'f ones may be summed upas follows:

In case of a leak occurring in the, Cooling blockl7 of a radiator, it issuiiicient to close the regulator valve of the damaged element and thencontinue the journey, or after the a spare one, and to re-open the r';ulalor, this operation taking` but a :lew minutes. rlChis )racticallyeliminates lealtanje troubles.

In Winter, or in cold countries, the regulators ot each element can beslightly closed .in order to obtain less c'.li1r` and thus avoidlireezing; this makes it possible, to ohtain a variable circnlation.

In Winter one or more elements could he cut out completely by closingtheir regulators.

In very hot Weather, all the regulators can be opened, or the elementsreplaced by elements With a larger radiatino' surliace. This makes itpossible to obtain a variahlc radiating` surface.

Exaniination and cleanino` are tacilitated. Having now particularlydeserihed and ascertained the nature of my said invention and in Whatmanner the same is to he per- 'formed, I declaie that what I. i'laim is2--- l. An automobile radiator unit eouiprising, in combination with thehot aud. eold water headers, a. union ria'idly attaehed io each header;a junetion pipe connected to each union; a plurality ofw:d'er-oireulatin: elements eonnecl'cal at opposilc ends to saidjunction pipes; a conncctinr rod cxteuding; through each junction pipeand 'the rorrcsponding` union tor 'lfastening the two together, each rodbeing` rotatable .from the exterior of the radiator unit, and meanscarried by each rod and operable by the rotation thereol for controllingcommunication botween the junction pipes and the unions.

2. An antomobile radiator unit eomprising, in combination With the hotand. cold Water headers, a union rin'idly attachcd to each header; apair of parallel junction pipes secured to said unions; a plurality ofWatra'- circnlating` elements connected at opposile ends to said.junction pipes; a threaded rod disposed Within each junction pipe andpro- ;iecting at one end-into the adjaeent union; and a valve on eachrod to control communication between lhe respective ;iuuetion pipe and.'its connected union, said rods |e.iu; operable flirom the exterior otthe. radiator unit to effect the displaeoment ot said valves.

3. An autoinobile radiator unit eomprising, in combination with the hotand cold water headers, a unionrigidly attachcd to each header; a pairof parallel junction oipes secured to said. unions; a plurality otWa'ter-circulating elements connected at opposite ends to said junctionpipes; a thrcaded rod disposed within each `iunction pipe andprojecting` at opposite ends beyond the samo` one end of the rodcxtcnding into and through the adjacent union; a centerine` nut threadedon each rod and serving` to close. the end ot the respective pipeoppositc to thatto which the union is connected. each :talentu rodhaving squared terminale to permit its being` turned from the exteriorof the radiator unit; a valve on each rod to control co1nmunicationbetween the respective junction pipe and its connected union anddisplaceable consequent upon the turning of the rod; and lock nutsthreadedvon the projectii'ig ends of the rods and fitting over theirsquared terminals.

4. An automobile radiator 'unit comprising, in combination with the hotand cold water headers, a pair of junction pipes, one associated witheach header; water-conducting means between the headers and the junctionpipes; a plurality of water-crculating elements connected at oppositeends with said junction pipes; a rod movably mounted in each junctionpipe and fastening it to the water-conducting means, said rod beingoperable from the outside of the junction pipe; and valves carried bysaid rods for controlling communication between the water-conductingmeans and the junction pipes and shiftableconsequent upon the movementof the rods.

5. An automobile radiator unit comprising, in combination With the hotand cold lwater headers, a pair of juncton pipes, one associated witheach header; water-conducting means between the headers and the junctionpipes; a plurality of water-circulating elements connected at oppositeends with said junction pipes; and a rod fastening each junction pipe tothe water-conducting means and operable from the exterior of theradiator unit, said rods having means for controlling the passage of thewater through the water-conducting means to or from the circulatingelements.

In testimony whereof I have signed this specification in the presence oftwo Subscribing witnesses.

JEAN RAIPTISTE DOMINIQUE LEN CHRDARD.

Witnesses:

ALPHoNsE NiooLAs, Gino. CARRIERE.

flO

